參數(shù)資料
型號(hào): BQ4802LYDWR
廠商: TEXAS INSTRUMENTS INC
元件分類(lèi): XO, clock
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO28
封裝: GREEN, PLASTIC, SOIC-28
文件頁(yè)數(shù): 22/24頁(yè)
文件大小: 481K
代理商: BQ4802LYDWR
bq4802Y
bq4802LY
SLUS464C – AUGUST 2000 – REVISED JUNE 2002
www.ti.com
7
READ CYCLE TIMING DIAGRAMS
tAA
tRC
Address
Previous Data Valid
Data Valid
DOUT
tOH
NOTES: A. WE is held high for a read cycle.
B. Device is continuously selected: CS = OE = VIL.
Figure 4. Read Cycle No. 1 – Address Access
tCLZ
tRC
High-Z
tCHZ
DOUT
CS
tACS
NOTES: A. WE is held high for a read cycle.
B. Device is continuously selected: CS = OE = VIL.
C. OE = VIL.
Figure 5. Read Cycle No. 2 – CS Access
tOHZ
tRC
tAA
Address
High-Z
Data Valid
High-Z
tOLZ
tOE
OE
DOUT
NOTES: A. WE is held high for a read cycle.
B. CS = VIL.
Figure 6. Read Cycle No. 3 – OE Access
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